That is wierd. Our dogs wouldn't let meat of any sort touch the ground. Ever. I can't imagine having to talk a dog into eating meat.
I've had quite a few dogs come in and out of my life (I'm involved with dog rescue) and there have only been a few who have turned away from raw meat. Since we don't know the history or past of these animals their individual quirks don't surprise me. The more prevalent problem I have is that the dogs love the raw meat so much they want to grab it and run to their favorite place with it (the couch) or, worse yet, want to BURY it in the couch!
In the summer I can feed them outside where they can keep the germs and mess outside but in the winter is when I usually grind so they are forced to eat at their bowls.
Sue